English Dictionary: methyl alcohol | by the DICT Development Group |
From WordNet (r) 3.0 (2006) [wn]: | |
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From WordNet (r) 3.0 (2006) [wn]: | |
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From WordNet (r) 3.0 (2006) [wn]: | |
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From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Methyl \Meth"yl\, n. [See {Methylene}.] (Chem.) A hydrocarbon radical, {CH3}, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [Formerly written also {methule}, {methyle}, etc.] {Methyl alcohol} (Chem.), a light, volatile, inflammable liquid, {CH3.OH}, obtained by the distillation of wood, and hence called {wood spirit} | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Alcohol \Al"co*hol\ ([acr]l"k[osl]*h[ocr]l), n. [Cf. F. alcool, formerly written alcohol, Sp. alcohol alcohol, antimony, galena, OSp. alcofol; all fr. Ar. al-kohl a powder of antimony or galena, to paint the eyebrows with. The name was afterwards applied, on account of the fineness of this powder, to highly rectified spirits, a signification unknown in Arabia. The Sp. word has both meanings. Cf. {Alquifou}.] 1. An impalpable powder. [Obs.] 2. The fluid essence or pure spirit obtained by distillation. [Obs.] --Boyle. 3. Pure spirit of wine; pure or highly rectified spirit (called also {ethyl alcohol}); the spirituous or intoxicating element of fermented or distilled liquors, or more loosely a liquid containing it in considerable quantity. It is extracted by simple distillation from various vegetable juices and infusions of a saccharine nature, which have undergone vinous fermentation. Note: As used in the U. S. [bd]Pharmacop[oe]ia,[b8] alcohol contains 91 per cent by weight of ethyl alcohol and 9 per cent of water; and diluted alcohol (proof spirit) contains 45.5 per cent by weight of ethyl alcohol and 54.5 per cent of water. 4. (Organic Chem.) A class of compounds analogous to vinic alcohol in constitution. Chemically speaking, they are hydroxides of certain organic radicals; as, the radical ethyl forms common or {ethyl alcohol} ({C2H5.OH}); methyl forms {methyl alcohol} ({CH3.OH}) or {wood spirit}; amyl forms {amyl alcohol} ({C5H11.OH}) or {fusel oil}, etc. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Methyl \Meth"yl\, n. [See {Methylene}.] (Chem.) A hydrocarbon radical, {CH3}, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [Formerly written also {methule}, {methyle}, etc.] {Methyl alcohol} (Chem.), a light, volatile, inflammable liquid, {CH3.OH}, obtained by the distillation of wood, and hence called {wood spirit} | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Alcohol \Al"co*hol\ ([acr]l"k[osl]*h[ocr]l), n. [Cf. F. alcool, formerly written alcohol, Sp. alcohol alcohol, antimony, galena, OSp. alcofol; all fr. Ar. al-kohl a powder of antimony or galena, to paint the eyebrows with. The name was afterwards applied, on account of the fineness of this powder, to highly rectified spirits, a signification unknown in Arabia. The Sp. word has both meanings. Cf. {Alquifou}.] 1. An impalpable powder. [Obs.] 2. The fluid essence or pure spirit obtained by distillation. [Obs.] --Boyle. 3. Pure spirit of wine; pure or highly rectified spirit (called also {ethyl alcohol}); the spirituous or intoxicating element of fermented or distilled liquors, or more loosely a liquid containing it in considerable quantity. It is extracted by simple distillation from various vegetable juices and infusions of a saccharine nature, which have undergone vinous fermentation. Note: As used in the U. S. [bd]Pharmacop[oe]ia,[b8] alcohol contains 91 per cent by weight of ethyl alcohol and 9 per cent of water; and diluted alcohol (proof spirit) contains 45.5 per cent by weight of ethyl alcohol and 54.5 per cent of water. 4. (Organic Chem.) A class of compounds analogous to vinic alcohol in constitution. Chemically speaking, they are hydroxides of certain organic radicals; as, the radical ethyl forms common or {ethyl alcohol} ({C2H5.OH}); methyl forms {methyl alcohol} ({CH3.OH}) or {wood spirit}; amyl forms {amyl alcohol} ({C5H11.OH}) or {fusel oil}, etc. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Methylal \Meth"yl*al\, n. [Methylene + alcohol.] (Chem.) A light, volatile liquid, {H2C(OCH3)2}, regarded as a complex ether, and having a pleasant ethereal odor. It is obtained by the partial oxidation of methyl alcohol. Called also {formal}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Middle \Mid"dle\, a. [OE. middel, AS. middel; akin to D. middel, OHG. muttil, G. mittel. [?][?][?][?]. See {Mid}, a.] 1. Equally distant from the extreme either of a number of things or of one thing; mean; medial; as, the middle house in a row; a middle rank or station in life; flowers of middle summer; men of middle age. 2. Intermediate; intervening. Will, seeking good, finds many middle ends. --Sir J. Davies. Note: Middle is sometimes used in the formation of selfexplaining compounds; as, middle-sized, middle-witted. {Middle Ages}, the period of time intervening between the decline of the Roman Empire and the revival of letters. Hallam regards it as beginning with the sixth and ending with the fifteenth century. {Middle class}, in England, people who have an intermediate position between the aristocracy and the artisan class. It includes professional men, bankers, merchants, and small landed proprietors The middle-class electorate of Great Britain. --M. Arnold. {Middle distance}. (Paint.) See {Middle-ground}. {Middle English}. See {English}, n., 2. {Middle Kingdom}, China. {Middle oil} (Chem.), that part of the distillate obtained from coal tar which passes over between 170[deg] and 230[deg] Centigrade; -- distinguished from the light, and the heavy or dead, oil. {Middle passage}, in the slave trade, that part of the Atlantic Ocean between Africa and the West Indies. {Middle post}. (Arch.) Same as {King-post}. {Middle States}, New York, New Jersey, Pennsylvania, and Delaware; which, at the time of the formation of the Union, occupied a middle position between the Eastern States (or New England) and the Southern States. [U.S.] {Middle term} (Logic), that term of a syllogism with which the two extremes are separately compared, and by means of which they are brought together in the conclusion. --Brande. {Middle tint} (Paint.), a subdued or neutral tint. --Fairholt. {Middle voice}. (Gram.) See under {Voice}. {Middle watch}, the period from midnight to four A. M.; also, the men on watch during that time. --Ham. Nav. Encyc. {Middle weight}, a pugilist, boxer, or wrestler classed as of medium weight, i. e., over 140 and not over 160 lbs., in distinction from those classed as {light weights}, {heavy weights}, etc. |